Diff bw homologous and analogous organs (5 marks)?
Homologous
= Same.. Structure Different Functions...
for eg.. Forelimbs. of Human and Frog
ek.. Diagram Bna dena
Analogous
= Different structure Same.. Function
For eg.. WinGs of Bat n Bird
ek diagram bna Dena..
Hope It's Help u
Diff bw homologous and analogous organs (5 marks)?
Homologous and Analogous Organs
Introduction
Homologous and analogous organs are the two terms that are used to describe the organs of different organisms. These terms are often used in the study of comparative anatomy. In this answer, we will discuss the difference between homologous and analogous organs.
Homologous Organs
Homologous organs are those organs that have the same basic structure and origin but may have different functions. These organs are usually found in different organisms that have a common ancestor. For example, the forelimbs of humans, bats, cats, and whales all have the same basic structure, with a humerus, radius, and ulna bones. However, they have different functions, such as grasping, flying, or swimming.
Analogous Organs
Analogous organs are those organs that have a similar function but different basic structure and origin. These organs are usually found in different organisms that do not have a common ancestor. For example, the wings of birds and the wings of insects have a similar function, which is flying, but they have different structures and origins.
Differences between Homologous and Analogous Organs
There are several differences between homologous and analogous organs. Some of these differences are:
1. Structure and Origin: Homologous organs have the same basic structure and origin, while analogous organs have different structures and origins.
2. Function: Homologous organs may have different functions, while analogous organs have similar functions.
3. Common Ancestor: Homologous organs are usually found in different organisms that have a common ancestor, while analogous organs are usually found in different organisms that do not have a common ancestor.
4. Evolutionary Relationships: Homologous organs are used to determine the evolutionary relationships between different organisms, while analogous organs are not.
5. Development: Homologous organs develop from the same embryonic tissue, while analogous organs develop from different embryonic tissue.
Conclusion
In conclusion, homologous and analogous organs are two terms that are used to describe the organs of different organisms. Homologous organs have the same basic structure and origin, while analogous organs have different structures and origins. Homologous organs may have different functions, while analogous organs have similar functions. Homologous organs are usually found in different organisms that have a common ancestor, while analogous organs are usually found in different organisms that do not have a common ancestor. Homologous organs are used to determine the evolutionary relationships between different organisms, while analogous organs are not.
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.